A forum for SAC users to exchange ideas and ask questions about SAC usage, installation, portability, etc.
Active Message Threads for June 2011
Hello, Is there a way to pick times off the spectrogram figure that SAC creates? or is there a way to extract the spectrogram it plots as a matrix so that I can use it to pick times with an external program? I am using SAC 101.4 As a test I tried picks command after spectrogram as follows but it didn't work. r file spectrogram window 1 slice 0.5 order 100 cbar sqrt method mem ymin 0 ymax 2 color picks T3 C T4 C W 0.05 H 0.3 Thanks ! Januka.
Dear Colleagues and Friends: The problem I had with taup_setsac was fixed by upgrading from TauP-2.0beta6 (which I had) to TauP-2.0beta9. Thank you all so much for your hints and suggestions.
2011-06-27 15:48:10 - 2011-06-28 01:56:04
Hello, I am working with SAC currently and when I have a plot open, I cannot close it no matter what. I tried the 'quitsub' command but it is giving me a "sh:quitsub not found" error which is strange because I tried 'fft' and that worked. I am trying to quit the plot because I want to change directory but as long as a plot is open I don't think it will let me. What can I do? Thank you for your help.
Hi, Is there any possibility that SAC developers could add documentation on calling SAC within a Shell script to the SAC User guide? This is an area I repeatedly had problems with and haven't found a robust solution yet. The external documentation that I have found online haven't been that helpful either. Thank you. Januka.
Dear Friends and Colleagues: In an attempt to put the theoretical arrival times in SAC headers, I have used a program contained in TAU_P package, called "taup_setsac". I called this program both within and without SAC environment but I always get the following error: SAC> taup_setsac -ph P -evdpkm -verbose GRA1.Z Exception in thread "main" java.lang.NullPointerException at edu.sc.seis.TauP.TauP_SetSac.parseCmdLineArgs(TauP_SetSac.java:353) at edu.sc.seis.TauP.TauP_SetSac.main(TauP_SetSac.jav… [more]
Re: taup_setsac errors in setting theoretical arrival times of phases - Arthur Snoke - 2011-06-27 15:37:04
Re: taup_setsac errors in setting theoretical arrival times of phases - Philip Crotwell - 2011-06-27 17:55:47
Amarjeet Kumar via LinkedIn
LinkedIn ------------ Amarjeet Kumar requested to add you as a connection on LinkedIn: ------------------------------------------ Sac Help, I'd like to add you to my professional network on LinkedIn. - Amarjeet Accept invitation from Amarjeet Kumar http://www.linkedin.com/e/-9ou29g-gpc9orne-j/ubIx8rFs5oSdYQa2oQHQ-lofPc2q7sw6cHvfFlhxuru/blk/I20106023_125/1BpC5vrmRLoRZcjkkZt5YCpnlOt3RApnhMpmdzgmhxrSNBszYRcz5vcP8Mdz0Nc399bP5TsktGm3sRbP8QdPgQcjgPcPcLrCBxbOYWrSlI/EML_comm_afe/ View i… [more]
Dear Zheng, Thank you for your fast reply, zoom is one of the option but it is not what I am looking for, Basically, Graphical window of SAC pop up in a default size, I want to enlarge this graphical window, I mean, I want larger pop up graphical window. One of the way doing this, change my computer screen for example using 23 inc screen, but I suppose pop up large graphical window will do the same effect without change my screen. All my best Metin Yingcai Zheng wrote: > Sac can zoo… [more]
2011-06-23 17:01:34 - 2011-06-23 20:45:32
Hello, I am trying to install SAC onto Linux. Does it work in the most recent version of Ubuntu or does it only work in CentOS 4.7? If it only works in CentOS, what binary does should I download? ( The mirror sites give 5 different binaries, bin1of5, bin2of5, bin3of5, ext. ) Thank you for your help. Raymond Chen
Re: Installing SAC in Linux - Brian Savage - 2011-06-23 20:45:32
Dear SAC users, I am using SAC for my seismogram analysis. I prepared a SAC macro which help me see the wave forms and pick the arrival times. My question is when I read my data with read command in sac and plot them with ppk, a Graphic window is opened and I can see the wave forms but my computer screen is not so big so that I have difficulty to see exact time of arrival time. I am using my mouse to get larger of Graphical window. but the ne wave forms open small size. What I want … [more]
Hi, I want to calculate moving RMS values on a data file. i.e. I have one day time series, and want to calculate RMS value within 101 points window at each sample. I think that the rms command has not a moving window. is there a tool in SAC? thanks. onur Dr. Onur TAN ---------------------------------------------- 40.7866N 29.4500E --------- TÜBİTAK Marmara Araştırma Merkezi, Yer ve Deniz Bilimleri Enstitüsü TUBITAK Marmara Research Center, Earth and Marine Sciences Institute Gebze - K… [more]
LinkedIn ------------ I'd like to add you to my professional network on LinkedIn. - Kawsar Kawsar Laskar Engineer at Consulting Consulting Engineering Services (India) Pvt. Ltd. New Delhi Area, India Confirm that you know Kawsar Laskar https://www.linkedin.com/e/-9ou29g-gp5a7mg9-55/isd/3271279359/PMc4wDvC/ -- (c) 2011, LinkedIn Corporation
LinkedIn ------------ I'd like to add you to my professional network on LinkedIn. - Kawsar Kawsar Laskar Engineer at Consulting Consulting Engineering Services (India) Pvt. Ltd. New Delhi Area, India Confirm that you know Kawsar Laskar https://www.linkedin.com/e/-9ou29g-gp5a6yw1-2o/isd/3271279359/PMc4wDvC/ -- (c) 2011, LinkedIn Corporation
2011-06-09 16:32:42 - 2011-06-11 17:21:21
All sac users: I am a beginner here, so I would like to ask some questions, I hope some advanced user of sac can help me with my doubts about transfer command. 1. I have a seismogram waveform which is velocity record from velocity transducer. I have the response instrument read with rdseed and the RESP.* is the velocity response, but the pole zero is displacement response. My question: When I apply trans from polezero ..., using that polezero obtained from rdseed, do I get the velocity ground … [more]
Re: ask: transfer function - Onur Tan - 2011-06-09 18:42:23
2011-06-03 22:30:35 - 2011-06-07 00:20:22
Sent: Wednesday, June 01, 2011 11:17 AM To: 'email@example.com' Subject: cutting sac files on time Hi, I just want to cut sac files only by giving exact time. I use to sign to put T0 and then cut from T0 but always have problems to see exact peak to cut, so I just want to give exact time to cut without putting T0 . is it possible to cut files only by giving exact times. thanx - ________________________________ Bu e-posta mesaj? ve onunla iletilen t?m ekler g?nderildi?i ki?i ya da … [more]
Sir, I rececived two mail from your side, after registering for SAC software, in first link i get sac-101.4.tar.gz(11.3 MB) and in second one i get sac-101.4-linux_x86_32.tar.gz( 7.3 MB). I have 32 bit configure computer. when i install the package sac-101.4.tar.gz it install but after going to the all procedure describe by you in readme it won,t run.But when i install sac-101.4-linux_x86_32.tar.gz it install and run.please tell me why this happen ? Is both these package is necessary to ins… [more]
Re: sac problem - Milton Plasencia - 2011-06-04 19:49:48